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1, Merlins Avenue, South Harrow, HA2 9ET

PL/1745/25Householder planning permissionApproved
Householder

Approved on 7 January 2026

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Retrospective single storey front extension incorporating front porch, single and two storey side to rear extension.

Submitted
23 September 2025
  1. Received23 Sep
  2. Validated
  3. Consult.
  4. Target
  5. Decided7 Jan

Decided in 106 days (council typically 56)

About this application

This is a planning application for a rear extension at 1, Merlins Avenue, South Harrow, HA2 9ET. Harrow has handled 664 applications of this type. This one was decided in 106 days, 7 weeks longer than Harrow's typical decision time. The site is in a conservation area. There are no previous applications recorded at this address. We hold 1,767 applications in total for the HA2 postcode area.

82% of householder planning permission applications at London Borough of Harrow were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
HA2 9ET
Application type
Householder planning permission

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2026
    2 Feb

    Details pursuant to Condition 4 (Surface Water Attenuation and As-Built Foul Drainage) attached to planning…

    PendingDischarge of conditionsPL/0282/26
  2. 2025
    23 Sep

    Retrospective single storey front extension incorporating front porch, single and two storey side to rear…

    This applicationApprovedHouseholderPL/1745/25

Source: Harrow

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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